从中送来了死之忧郁的音乐: gaps are left in life through which comes the sad music of death
都感觉彻底地被忧郁之箭击中: i feel shot right through with a bow of gloom
就是: 1.(表示同意) quite right; exactly; precisely 短语和例子就是嘛, 我也这么劝过她。 precisely. that's just what i had tried to talk her round.2.(即使) even if; even 短语和例子就是小学生也知道这一点。 even school children know this.